Extech 407750 Digital Sound Level Meter with large backlit display and PC interface with background sound absorber for machine noise measurements
The Extech 407750 is a digital sound level meter designed for machine noise evaluation, OSHA compliance testing, and community noise measurement. It features a large backlit display with a PC interface and includes a background noise absorber mode specifically for machine noise measurements.
The device meets ANSI and IEC Type 2 standards with selectable A and C frequency weightings and fast or slow response times. It offers a measurement range of 30 to 130dB with 0.1dB resolution and includes an electret condenser microphone for 1.5dB accuracy.
| Measurement Range | 30 to 130dB |
|---|---|
| Accuracy | ±1.5 dB @ 94dB |
| Frequency Weighting | A and C type |
| Applicable Standards | IEC 651 Type 2, ANSI S1.4 Type 2 |
| Dimensions | 10 x 3.1 x 1.5"(256 x 80 x 38mm) |
| Weight | 8.5oz. (240g) |
It meets ANSI and IEC Type 2 standards.
The device supports A and C selectable frequency weightings.
Yes, it includes a background noise absorber mode for machine noise measurements.